Thursday, June 14, 2012

Current Output Multiplier for 78xx Regulator circuit diagram

By default, the regulator ID 78xx series will give maximum current output 1A – 1.5A. To increase the current output of this regulator, you may consider this circuit.
Current Output Multiplier for 78xx Regulator circuit
Parts list:
R1, R2 = 4.7 K
C1, C2 = 4700 uF / 16V
C3 = 47,000 uF / 35V
D1,D2, D3 = 1N5401 ( 3 Amp Diodes )
D4 & D5 – Light Emitting Diodes (LED)**
IC1, IC2 – 78xx series regulator IC ( 7805 for 5V, 7812 for 12V etc.)
Detail instruction: go to this page
My Notes:
  • The original circuit source said that the diode is1N4003(3A diodes). That’s is a mistake, the correct diodes should be1N5401
  • Schottky diodes is recommended
 

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